diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index 74a2e9d7..03bd4e59 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -51,6 +51,7 @@ jobs:
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
       with:
+        token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
         flags: unittests # optional
         name: coverage # optional
         fail_ci_if_error: true # optional (default = false)